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Satellite TV rain fade sprays: Do they work?

Is it rain on the dish the causes the problem or extremely heavy cloud cover? I always thought it was clouds that blocked the signal.

If there is anything to this theory, one would think the dish manufacturers would put Teflon on dishes at the factory.

How practical is it to go up on the roof to apply this stuff every so often?
 
depending on what you have (pizza pan dish) you could always get a larger dish, this will decrease rain fade, that being said I don't think the sprays work. If you have dish or Direct you shouldnt loose signal that long during rain (heavy or thick clouds), If you do you might need to adjust the dish to peak the signal. Unfortunatly directv & Dish are on the ku/ka bands and there really isnt anything you can do about rain fade...just decrease the duration by having the strongest signal possible.
 
I have seen ads for a donut-ring that fits around the original dish to make it larger, supposedly to reduce rain fade, and for larger replacement dishes.

Rain-fade is major pain with DirecTivo; to go to view a show and find part of it missing.
 
According to the web site it is to prevent heavy build up of rain, snow or ice on the dish. You can use noon stick cooking spray to prevent this from happening and it costs 1/4 of the product on that site.
 
fred flintstone said:
Rain-fade is major pain with DirecTivo; to go to view a show and find part of it missing.
Click to expand...

I agree, but I sure do love my tivo. I have a garage full of 36" dishes and if I ever get around to going up on the roof I may swap it out...that should all but cut out the worst rain fade. I have another dish up there that needs re-peaked and I may swap the Dirctv dish out at the same time. you can get a 36" for about $65 or a 31" for $45 which would be more than enough for directv. Unfortunatly if you have the 3Lnb or AT-9 (5Lnb ka/ku) this solution wont work, that being said I have heard of people haveing success with the Wave Frontier multi feed toroidal dishes (I dont know if this would work for the AT-9 (5lnb ka/ku) setup becouse the set up is a bit strange feeding all 5 lnb's though one cable and seperating them at the box). I dont have trouble with snow buildup here in the south but I have seen a low voltage heater that sticks to the back of the dish and keeps it warm enough to keep the snow off.
 
Rain fade is caused when the actual rain falling through the air blocks the signal between the satellite and your dish. It is not caused by water droplets on the dish. That's why when you get really heavy rain and thunderstorms the signal goes out, but when it's just a light or steady rain the signal is fine.
 
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